Home / 64,261,711.34-96,395,667.10-21,129,959.78

Finding the Fourth Proportional to 64,261,711.34, 96,395,667.10 and 21,129,959.78

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Solution

The fourth proportional to 64,261,711.34, 96,395,667.10 and 21,129,959.78 is: 31,695,959.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,261,711.34 : 96,395,667.10 = 21,129,959.78 : x
  2. Step 2: Convert to fraction form
    64,261,711.34/96,395,667.10 = 21,129,959.78/x
  3. Step 3: Cross multiply
    64,261,711.34x = 96,395,667.10 × 21,129,959.78
  4. Step 4: Simplify right side
    64,261,711.34x = 2,036,836,568,789,269.25
  5. Step 5: Solve for x
    x = 2,036,836,568,789,269.25/64,261,711.34
  6. Step 6: Final answer
    x = 31,695,959.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.